Enhanced Triplet Formation in Polycrystalline Tetracene Films by Femtosecond Optical-Pulse Shaping

被引：86
作者：
Grumstrup, Erik M. [1 ]
Johnson, Justin C. [2 ]
Damrauer, Niels H. [1 ]
机构：
[1] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA
[2] Natl Renewable Energy Lab, Golden, CO 80401 USA
来源：
PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 25期
关键词：
SINGLET FISSION; SPECTROSCOPY; BACTERIORHODOPSIN; PENTACENE; MOLECULES; STATES;
D O I：
10.1103/PhysRevLett.105.257403
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Polycrystalline tetracene films have been explored using weak similar to 30 fs visible laser pulses that excite the lowest singlet exciton as well as coherent vibrational motion. Transient difference spectra show a triplet absorption which arises following singlet fission (SF) and persists for 1.6 ns without decay. Adaptive pulse shaping identifies multipulse optimal fields which maximize this absorption feature by similar to 20%. These are comprised of subpulses separated by time delays well correlated with the period of lattice vibrations suggesting such modes control the yield of SF photochemistry.
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页数：4
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共 26 条
  • [1] Control of electron transfer pathways in a dye-sensitized solar cell
    Bruggemann, Ben
    Organero, Juan Angel
    Pascher, Torbjörn
    Pullerits, Tönu
    Yartsev, Arkady
    [J]. PHYSICAL REVIEW LETTERS, 2006, 97 (20)
  • [2] Control of excited-state population and vibrational coherence with shaped-resonant and near-resonant excitation
    Buckup, T.
    Hauer, J.
    Serrat, C.
    Motzkus, M.
    [J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2008, 41 (07)
  • [3] Excited state dynamics in solid and monomeric tetracene: The roles of superradiance and exciton fission
    Burdett, Jonathan J.
    Mueller, Astrid M.
    Gosztola, David
    Bardeen, Christopher J.
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2010, 133 (14)
  • [4] Davydov A. S., 1962, THEORY MOL EXCITONS
  • [5] TIME-RESOLVED VIBRATIONAL SPECTROSCOPY IN THE IMPULSIVE LIMIT
    DHAR, L
    ROGERS, JA
    NELSON, KA
    [J]. CHEMICAL REVIEWS, 1994, 94 (01) : 157 - 193
  • [6] Solar conversion efficiency of photovoltaic and photoelectrolysis cells with carrier multiplication absorbers
    Hanna, M. C.
    Nozik, A. J.
    [J]. JOURNAL OF APPLIED PHYSICS, 2006, 100 (07)
  • [7] Quantum control of energy flow in light harvesting
    Herek, JL
    Wohlleben, W
    Cogdell, RJ
    Zeidler, D
    Motzkus, M
    [J]. NATURE, 2002, 417 (6888) : 533 - 535
  • [8] STRUCTURE AND OPTICAL-PROPERTIES OF POLYCRYSTALLINE EVAPORATED TETRACENE FILMS
    HOFBERGER, W
    [J]. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1975, 30 (01): : 271 - 278
  • [9] TEACHING LASERS TO CONTROL MOLECULES
    JUDSON, RS
    RABITZ, H
    [J]. PHYSICAL REVIEW LETTERS, 1992, 68 (10) : 1500 - 1503
  • [10] Interpretation of the Ultrafast Photoinduced Processes in Pentacene Thin Films
    Kuhlman, Thomas S.
    Kongsted, Jacob
    Mikkelsen, Kurt V.
    Moller, Klaus B.
    Solling, Theis I.
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (10) : 3431 - 3439
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